Ooen sheller



(No Model.) 4 Sheets-Sheet 1.

J. H. G-ILMAN.

001m SHELLER. No. 398,146. Patented Feb. 19, 1889.

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4 sheets sheet 2. J. H. GILMAN.

CORN SHELLER.

(No Model.)

No. 398.146. Patented Feb. 19, 1889.

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[70h]; z'zzzzazu N. FETERS, Phntvlflhogmpher, Wilmington. D. C.

4 Sheets-Sheet 3. J. H. GILMAN.

CORN SHELLEB.

(No Model.)

Patented Feb. 19, 1889.

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(No Model.) '4 Sheets-Sheet 4'.

J. H. GILMAN.

CORN SHELLER.

No. 398,146. Patented Feb. '19, 1889.

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UNITED STATES PATENT FFICE.

J OHN H. GILMAN, OF OTTAlVA, ILLINOIS, ASSIGNOR TO THE KING & HAMILTONCOMPANY, OF SAME PLACE.

CORN-SHELLER.

SPECIFICATION forming part of Letters Patent No. 398,146, dated February19, 1889. Application filed May 3, 1888. Serial No. 272,702. (No model.)

To all whom [it may concern:

Be it known that I, J OHN H. GILMAN, a citizen of the United States,residing at Ottawa, in the county of La Salle and State of Illinois,have invented a certain new and useful Improvement in Corn-Shellers,which is fully set forth in the following specification, reference beinghad to the accompanying drawings, in which Figure 1 represents a sideview of a machine embodying my invention; Fig. 2, a central longitudinalsectional view of the same; Fig. 3, an end elevation; Fig. 4, atransverse sectional view taken on the line 1 l of Fig. 2; Fig. 5, acentral longitudinal sectional view of the shelling cylinder and itscasing; Fig. 6, a transverse sectional view of the same, taken on theline 2 i of Fig. 5; Fig. 7, a sectional view of. the elevator-spout, andFig. 8 a detail view showing the manner of connecting the shelling-teethto the cylinder.

Like letters refer to like parts in all the figures of the drawings.

My invention relates to corn-shellers in which the grains of corn may beseparated from the cob, screened, and discharged from the machine at onepoint, while the cobs are discharged separately at another point.

To these ends my invention consists in certain novel features, which Iwill now proceed toward the cylinder will not be V-shaped, as

to describe, and will then particularly point out in the claims.

In the drawings, A represents a suitable frame, which forms the base ofthe machine, and which is mounted upon wheels a, by means of which themachine may be trans ported from place to place, as desired. Upon thisframe there is mounted a suitable casing, A, within which the shellingmechanism proper is mounted.

vator, B, of any suitable construction, which serves as a feeder to feedthe ears of corn 1:0 the shelling mechanism.

At the top of the feeder B there is arranged a feeding-spout, B,extending downward and The shelling mechanism is arranged in the At therear of the ma- E chine is mounted an inclined conveyer or eleshown inFig. 6 of the drawings.

- shelling-cylinder.

upper portion of the casing A, and consists of a cylinder, C,constructed, preferably, of metal and hollow, said cylinder beingmounted on a shaft, C, which isitself mounted in suitable bearings inthe casing A. This cylinderis provided with a series of rows ofshelling-teeth, c, the said rows being arranged in spirals extendingaround the cylinder from end to end thereof. Each tooth is provided withan angular body extending radially outward from the cylinder, and with around shank or stem, (3, which passes through. a corresponding aperturein the cylinder 0, and is threaded at its inner end to receive a nut, 0by means of which the tooth is secured in position.

The cylinder C is surrounded by a case, D, which operates in conjunctionwith the teeth of the cylinder to remove the grains of corn from thecobs, or, in other words, toshell the corn. bars, D, square or angularin cross-section, extending longitudinally and parallel to the surfaceof the cylinder, and so arranged as to present one of their angles oredges toward the teeth of the cylinder. The bars D are set at a slightangle to each other, which is considerably less than forty-five degrees,so

' that while an edge is presented to the shelling-cylinder the openingbetween the bars If this opening is V-shaped, there is a tendency of thecorn to wedge or clog between the bars, so as to interfere somewhat withfree clearance. These bars are arranged at such distances apart as topermit the shelled grains of corn to pass freely through theintermediate spaces, and at the same time prevent the cobs from passingthrough said spaces. In making this arrangement of the said bars theyare to be turned so that the edge or corner onthe inside face, whichstands toward the -movement of the shelling-cylinder, will be raisedsomewhat above the opposite inside corner. This will provide a roughshellingsurface with somewhat sharp corners or edges standing opposed tothe revolution of the will obviously be improved by this construe tion,and the filling up of spaces to make a The operation of shelling Thiscase consists of a series of I smooth surface will be obviated. They areheld in position by means of supports D curved to conform to the shapeof the ease, or, in other words, circular in form, through which.supports the bars 1) pass, as shown in Figs. 5 and ti. In the presentinstance I have shown the upper portion of the case 1) as composed of asmooth semi-cylindrical shell, D the lower half only being composed ofbars D; but it is obvious that the entire case D may be constructed ofthe bars D, if desired. The lower half of the case D is inclosed bymeans of an outer casing, I)", open at the bottom, as shown in Fig. 6 atd", to allow the grains of corn to pass through. The cylinder is drivenby means of an upright shaft, E, mounted in suitable bearings at thefront of the machine, said shaft being provided with a bevel-gear, e,which meshes with a corresponding bevel-gear, (1 on the front of theshaft (3.

The vertical shaft E is provided near its lower end with a bevel-gear,e, and there is arranged on the front of the machine, in suitablebearings thereon, a horizontal shaft, E, provided with a bevel-gear, 0which meshes with the be\ 'elgear e. E is con nected to the shaft of thehorse-power, or is driven from any other suitable source one sidethereof, the said casing being provided with a lateral opening, a,through which the said screen passes, and with an in-.

elined extension, A arranged under the projecting portion of the screen,and serving to receive the grains of corn which fall through the saidextended portion and return them to the interior of the casing. Asimilar extension, d of the casing extends over the top of the screen.At the opposite side of the easing A there is arranged a blower, G,driven by means of a belt, g, from a pulley, C 011 the rearend of theshaft C. The screen F is supported and guided 011 the side adjacent tothis blower by means of pins f, which pass through suitable hearings inthe casing A. The other side of the screen F is supported by means ofuprights or standards F, mounted on the frame A outside of the casing A,and arranged at each end of the extension A of said casing.

Beneath the screen 1* the casing A is provided with a bottom havinginclined or sloping walls h, the same forminga hopper orbox,

"Hfterminating in a trough, 1-1, which runs The horizontal shafttransversely of the machine. \Vithin this trough there is arranged aspiral conveyer, H mounted on a shaft, 71, which serves to feed theshelled corn along the said trough and discharge it into the elevator I.This elevator is of any suitable construction, and is arranged with itslower end immediately adjacent to the end of the trough H. A shaft, 6,at the loner-end of the elevator is provided with a sprocketavheel, 1',over which and over a sprocket-wheel, 7L2, on the end of the shaft 7ithere passes a sprocket-chain, I, by means of which the spiral conveyorH is operated.

1 represents a shaft; mt'iunted in suitable hearings on the front of themachine and provided with a bevel-gear, iiwhich meshes with thebevel-gear e on the vertical shaft E. A sprocket-wheel, i is mounted onthe shaft 1", and over this sprocket-wheel there passes asprocket-chain, 1 which also passes over a sprocket-wheel, i",on-theshaft 1' at the top of the elevator and serves to impart movementto the said elevator. There is also mounted 011 the shaft 1, at aboutthe center thereof, a sprocket-whcel, 11 over which passes asprocket-chain,I"'. This sprocket-chain also passes over asprocket-wheel, h, on the upper shaft, f Z), of the feeder l and servesto impart moof power, and serves to impart motion to tion to the same.

l'pon the upper end of the shaft E there is arranged a throwing disk orwheel, I, inclosed in a suitable casing, J. The cobs are discharged fromthe shelling mechanism through an aperture, a in the end of the easingthereof, and the throwing-disk J is arranged immediately adj acent tothe said aperture, so that the cobs are discharged upon the saidthrowing-disk and delivered thence to the cob-stacker.

K represents the ob-stacker, which is of any suitable construction, andwhich is pivoted in the'usual manner, so as to swingboth vertically andhorizontally. It is mounted upon a shaft, K, at one corner of the machine, and is driven by means of a chain, 7:, passing around asprocket-wheel, e, on the shaft E. The support K for the said stacker isarranged at the extreme corner of the frame A, and is thus not only infront of the casing A, but also to one side of the same. By reason ofthis arrangement the cob-st acker may be swung from a position parallelto the side of the machine, as shown in the drawings, around to aposition parallel or almost parallel to the front of the machine, or, inother words, through three-quarters of a circle. Upon the side of thecasing A there is mounted a bracket, 7t, and when the cob-stacker K isswung around into position parallel with the side of the casing A it issupported by means of the said b acket 7c, and in this position is outof the way and renders the machine more compact during transportation.

Upon the discharge end of the elevator there is mounted adischarge-spout, L, which is provided at its upper end with a sphericalsocket, Z, which fits over a corresponding ball or spherical terminus,L, on the elevator I. The spout L is made in two longitudinal sectionsconnected together by lugs and bolts Z, so as to permit of its beingproperly con nected to the elevator. It will be seen that the spout isconnected to the elevator by means of a ball-and'socket joint, whichpermits free movement of the spout in 2111- desired directions andenables me to direct the discharge of shelled corn in any desireddirection.

The operation of the machine will be readily understood. from thepreceding description, and is as follows: The cars of corn are carriedupward by means of the feeder B and discharged through the feeding-spoutB to the shelling mechanism. The spiral teeth 0 of the cylinder C feedthe ears of corn gradually along, and at the same time they are shelledby means of the said teeth co-operatarranged so as to present theirangles to the cars and teeth, operate in the most effieient manner toeffect this result.

opening (1 and falls upon the reciprocating screen F. \Vhile restingupon and passing through the said screen it is subjected to the actionof the blower G, which sends a blast of air across the said screen andremoves all chaff and impurities therefrom. The extension of the screenF beyond the body of the casin g A serves to provide alargerscreeningsurface and retain the grains of corn, which would otherwise beblown off the said screen alon with the chaff. falls into the hopper H,and the screw conveyer H feeds the same along positively to the elevatorI, by means of which it is elevated and discharged in any desireddirection through the spout L. The cobs are discharged through theaperture a upon the throwing-wheel J, which latter throws them into thecob-stacker K, they being guided during their passage by the casing A.The cob-stacker discharges them at any desired point and elevation.

It is obvious that various modifications in the details of constructionmaybe made without departing from the principle of my invention, and Itherefore do not wish to be understood as limiting myself strictly tothe precise details hercinbefore described, and shown in the drawings.

Having thus described my invention, what I claim as new, and desire tosecure by Letters 'Paten t, is

1. In a eorn-sheller, the toothed shellingcylinder, in combination witha series of square or angular bars parallel to the cylin- The shelledcorn then .in combination with the eylinderscasinghaving a cob-dischargeaperture, a the vertical shaft E, provided with a throwing-wheel, J,arranged at said aperture, and the casing J, substantially as and forthe-purposes specified.

4. In a corn-sheller, the main casing A, provided with a lateralopening, a, in one side thereof, in combination with the incline A andcover a projecting from the side of i said casing, and the reciprocatingscreen F, ing with the bars D, which said bars, belng extending outthrough said lateral opening in the casing and reciprocating between thein cline A and cover a substantially as and for The shelled corn passesdown between the bars and through the shaft E, in combination with theshelling-cylinder geared to said shaft, the transverse shaft 1*, alsogeared to the shaft E, the feedelevator B, the sprocket-wheel on theshaft 1 and chain I, running thence to the feedelevator, the shelledcornelevator I, and the sproeketwheel i also 011 the shaft 1 and the chain 1running thence to the driver of the said elevator, substantially as andfor the purposes specified.

6. In a corn-sheller, the main or supporting frame, in combination witha casing containing the shelling mechanism mounted thereon and acob-stacker pivoted to the main frame at one corner thereof and outsideof the easing, whereby the stacker may be turned around against the sideof the casing, substantially as and for the purposes specified.

'7. In a corn-sheller, the main or supporting frame, in combinationwith. the casing A, mounted thereon and containing the shellingmechanism, the cob-stacker mounted 011 a pivotal support at one cornerof the frame and outside of the casing, and a bracket, 7t, mounted onthe casing and adapted to receive and retain the cob-stacker when turnedback against the side of the casing for transportation, substantially asand for the purposes specified.

J OHN H. GILMAN.

itnesses:

FRANK G. ALLEN, CLARENCE Graces.

IIO

